Re: Exchange, unable to relay

Tech-Archive recommends: Fix windows errors by optimizing your registry

In news:um3$hK58GHA.3396@xxxxxxxxxxxxxxxxxxxx,
Juan Perez <jperez@xxxxxxxxxxxxxxxxxxxxxx> typed:
Ok, I didnt make a ptr entry, my isp done it for me.

(OK. The IPs of all of your mail server(s) have reverse DNS (PTR)
entries. RFC1912 2.1 says you should have a reverse DNS for all your
mail servers. It is strongly urged that you...)

I?m thankfull about your help but i?m not sure of giving my domain
name in the forums, tell me paranoic, but i have such problems yet ...

I think that you want to do a dns report, i?ll send the errors.

------------------------------------------------------------

WARNING: One or more of your mailservers is claiming to be a host
other than what it really is (the SMTP greeting should be a 3-digit
code, followed by a space or a dash, then the host name). If your
mailserver sends out E-mail using this domain in its EHLO or HELO,
your E-mail might get blocked by anti-spam software. This is also a
technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the
hostname given in the SMTP greeting should have an A record pointing
back to the same server. Note that this one test may use a cached DNS
record.

mail.domain.com claims to be invalid hostname 'servidor':
220 servidor de correo X1
mail2.domain.com claims to be host mail.domain.com [but that host is
at
00.00.00.00 (may be cached), not 00.00.00.00].
------------------------------------------------------------

WARNING: One or more of your mailservers does not accept mail to
abuse@xxxxxxxxxxxxxxxxx Mailservers are expected by RFC2142 to accept
mail to abuse.
------------------------------------------------------------
Warning-
Your domain does not have an SPF record. This means that spammers can
easily send out E-mail that looks like it came from your domain, which
can make your domain look bad

------------------------------------------------------------

Could be the spf record?

Thanx for all.

Probably not.

I think it's fine to put your domain name in here. Your network is
protected, and your servers are patched, and you have good security
policies, right?


.

Relevant Pages

  • Hotmail blacklist
    ... WARN Mail server host name in greeting WARNING: ... mailservers is claiming to be a host other than what it really is (the ... WARN SPF record Your domain does not have an SPF record. ...
    (microsoft.public.exchange.admin)
  • Re: Cannot send mail out after default installation
    ... FAILURE: Reverse DNS entries for MX records ERROR: The IP of one or more ... it may mean that your DNS servers did not respond fast ... It is strongly urged that you have them, as many mailservers will ... SPF record Your domain does not have an SPF record. ...
    (microsoft.public.windows.server.sbs)
  • Re: Exchange, unable to relay
    ... The IPs of all of your mail serverhave reverse DNS (PTR) ... One or more of your mailservers is claiming to be a host other ... Your domain does not have an SPF record. ...
    (microsoft.public.exchange2000.general)
  • Re: Cannot send mail out after default installation
    ... This is then probably because you IP does not reverse DNS to your Domain. ... Your server is probably called called localhost or the ... It is strongly urged that you have them, as many mailservers will ... SPF record Your domain does not have an SPF record. ...
    (microsoft.public.windows.server.sbs)
  • Re: AOL refusing connections from our Exchange Server
    ... The sending Exchange Server is the MX Record ... RFC1912 2.1 says you should have a reverse DNS for all your mail servers. ... mail from mailservers with no reverse DNS entry. ... mailservers is claiming to be a host other than what it really is (the SMTP ...
    (microsoft.public.exchange.admin)